Disclosed are a decoherence processing method and system, and a coherent light receiving apparatus. The coherent light receiving apparatus comprises a plurality of photoelectric conversion units. The method comprises: performing phase comparison between electric signals, obtained by means of conversion performed by at least two of a plurality of photoelectric conversion units, and a reference signal to obtain a corresponding phase difference; according to the obtained phase difference, respectively performing phase compensation on the electric signals obtained by means of conversion performed by the at least two photoelectric conversion units, so as to obtain at least two compensated electric signals of the photoelectric conversion units; and using the at least two compensated electric signals of the photoelectric conversion units to superpose and output electric signals.
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3. The method according to claim 1, wherein the phase comparison, the phase compensation, and the superposition and output of corresponding electrical signals are performed for once or a plurality of times.
4. The method according to claim 3, wherein in a case that the phase comparison, the phase compensation, and the superposition and output of corresponding electrical signals are performed for a plurality of times, the phase of the reference signal is compared with the phase of the electrical signal converted by each of at least two photoelectric conversion units in real time or at a predetermined timing.
5. The method according to claim 4, wherein the electrical signal outputted by superimposing at least two of the electrical signals respectively converted by the plurality of photoelectric conversion units, or the total electrical signal outputted by performing phase compensation on at least two of the electrical signals respectively converted by the plurality of photoelectric conversion units and superimposing the compensated electrical signals is determined as a reference signal for a next phase comparison.
7. The method according to claim 1, wherein the photoelectric conversion unit includes at least one pixel.
10. The system according to claim 9, wherein the phase of the reference signal is compared with the phase of the electrical signal converted by each of at least two photoelectric conversion units in real time or at a predetermined timing.
14. The system according to claim 8, wherein the phase difference detection module comprises a phase discrimination unit, a phase difference voltage conversion unit and a second analog-to-digital conversion unit that are sequentially connected.
15. The system according to claim 8, wherein the phase compensation module comprises a plurality of series-connected compensation units, each of the compensation units is connected in parallel with a corresponding switch, and the switch is turned on or turned off according to a signal outputted by the phase difference detection module.
16. The system according to claim 8, wherein the photoelectric conversion unit includes at least one pixel.
17. A coherent light receiving device, comprising at least one decoherence processing system according to claim 8.
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October 9, 2019
January 9, 2024
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